If you have a restaurant supply store in your area, and you can deal with enormous quantities of food and have ways to freeze what you make, they sell 4 pound cans of white tuna that are 2/3rds the price per pound of smaller cans. Or split with friends, I don't know. Or try Walmart, they stepped up their grocery offerings, at least in Montreal, and boycotting the USA and Israel BAD aside, we gotta look out for ourselves first.